The Hobbit: An Unexpected Journey - full length trailer

A new Hobbit trailer has been released ahead of Peter Jackson's adaptation.

The Hobbit: An Unexpected Journey will open in cinemas on December 14 this year. The Office star Martin Freeman plays Bilbo Baggins, the title character and Ian McKellen reprises his role from The Lord of the Rings films as the wizard Gandalf.

Jackson announced earlier this year that The Hobbit will be split into three films, all due to be released a year apart.